What the difference between an FSP and ATX?

[AZNBoiOnFIYA]

http://www.newegg.com/app/ViewProductDesc.asp?description=17-103-915&depa=1

http://www.newegg.com/app/ViewProductDesc.asp?description=17-103-484&depa=1

looking before i buy one.

[Miguita]

Don't know what FSP means, but both these PSUs are regular ATX according to the site.

[Bigdogbmx]

FSP is part of the model name. I have a couple of old fsp psus. As far as I know they are part of the same company that does sparkle and fortron.

[Oklahoma Wolf]

The models with ATX in the model number are bottom of the line for Fortron. Not too bad, but I prefer the FSP models.